THE BRACHIOPODA. 



399 



Fio. 116.— Lateral view of the vifcera of WaMheimia austraZis (after Hancock. " On 

 the Or?anization of the Brachiopoda," " Phil. Trans.," 1858). a, " dorsal " layer 

 of mantle; ft, "ventral " layer; c, anterior walls of the body between the mantle 

 lobes : (f, arras ; p, gullet ; q^ stomach with cut biliary ducts of the left side ; r, rii.'ht 

 hepatic mass; «, intestine endino: cascally below; v, so-called *' auricles;" o, the 

 right " pseudo-heart," the left being almost wholly removed ; w. pyriform vesicle 

 fixed at the back of the stomach; z, oesophageal ganglia; e,^", adductor; k, divari- 

 cator ; I, adjustor muscles ; n, peduncles. 



